Question : SQL syntax producing duplicate results

I have an SQL query that is producing overstated records. I have 2 tables, History_1 and History_2 tables. History 1 has multiple data rows matching Call_ID which is creating overstated results. What I need to happen is only to match against 1 of the mutiple data matching records to produce accurate results. I have attached the SQL Syntax. Thanks.

Code Snippet:

1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:



Use Dialer

Select
Facility_Name As "Facility",
History_1.Client As "Client",
Count(History_1.Client) As "Count"

From
History_1,
History_1,
LU_Clients

Where
History_1.Call_ID = History_2.Call_ID and
History_1.Client = LU_Clients.Facility_ID

Group By
History_1.Client,
Facility_Name

Open in New Window

Select All

Answer : SQL syntax producing duplicate results

I missed a point in the above post... try this...

1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:



Use Dialer

Select
Facility_Name As "Facility",
History_1.Client As "Client",
Count(History_1.Client) As "Count"
From History_1
		INNER JOIN History_2 ON History_1.Call_ID = History_2.Call_ID  
		INNER JOIN LU_Clients ON History_1.Client = LU_Clients.Facility_ID
Group By
History_1.Client,
Facility_Name

Open in New Window

Select All